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10-05-2006
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Inserting argument into top of a file
Hi,
I am new to Unix, and I am trying to append a line of argument into a current file. I need this line to be inserted into the very top of the file. Does anyone know how this is done? For example, I am trying: echo "insert to top" >> filename. This inserts the line at the bottom of the file. How do I get it to insert to the top?? Please help! 
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10-05-2006
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Code:
{
echo "This is the first line."
cat originalFile
} > newFile
mv newFile originalFile
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10-05-2006
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Hi Glenn,
Thank you for your input. I cannot do the way you are showing me. My task is to input a line to an existing file without creating new or temporary file. That is why I have used the >> symbol, but this inserts the line at the bottom. Do you know how to insert to the top without creating extra files?
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10-05-2006
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Whenever I see "without creating new or temporary file", I think "homework". You can use perl to edit files in place. Search the forums -- you will find many examples of this.
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10-05-2006
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Thanks for the input vgersh99. But again, that line of code inserts the line at the end of the file.. I am trying to get the line to be inserted at the top.
And Glenn, I understand where you are coming from, but I just don't wont to have so many temporary files created for no reason. Any ideas??
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10-05-2006
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Code:
printf '1i\nNew Line Goes Here\n.\nwq!\n' | ex myFile Code:
ex myFile <<EOF 1i New Line Goes Here . wq EOF Last edited by vgersh99; 10-05-2006 at 10:29 AM.
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